Etymology

airside

A1I1R1S1I1D2E1

Today it means: In the passenger-only area of an airport, beyond security, passport and immigration, and customs controls. Full definition →

English side ← Middle English side ← Old English sīde
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The story

  1. Latināēr
  2. Old Frenchair
  3. Middle Englishaire
  4. Englishair
  5. Proto-Indo-European*seh₁-
  6. Proto-Germanic*sīdaz
  7. Proto-Germanic*sīdǭ
  8. Old Englishsīde
  9. Middle Englishside
  10. Englishside
  11. English todayairside

From air + -side.

Etymology from Wiktionary, CC BY-SA 4.0.